ID   RB18A_LYMST             Reviewed;         202 AA.
AC   Q05976;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1994, sequence version 1.
DT   03-AUG-2022, entry version 99.
DE   RecName: Full=Ras-related protein Rab-18A;
GN   Name=RAB18A;
OS   Lymnaea stagnalis (Great pond snail) (Helix stagnalis).
OC   Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Gastropoda;
OC   Heterobranchia; Euthyneura; Panpulmonata; Hygrophila; Lymnaeoidea;
OC   Lymnaeidae; Lymnaea.
OX   NCBI_TaxID=6523;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=8223561; DOI=10.1111/j.1432-1033.1993.tb18239.x;
RA   Agterberg M., van Die I., Yang H., Andriessen J.A., van Tetering A.,
RA   van den Eijnden D.H., Ploegh H.L.;
RT   "Isolation and characterization of three cDNAs coding for Rab proteins from
RT   the albumen gland of the mollusc Lymnaea stagnalis.";
RL   Eur. J. Biochem. 217:241-246(1993).
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305}; Lipid-anchor
CC       {ECO:0000305}; Cytoplasmic side {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the small GTPase superfamily. Rab family.
CC       {ECO:0000305}.
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DR   EMBL; X72690; CAA51235.1; -; mRNA.
DR   PIR; S38340; S38340.
DR   AlphaFoldDB; Q05976; -.
DR   SMR; Q05976; -.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR   GO; GO:0003924; F:GTPase activity; IEA:InterPro.
DR   GO; GO:0015031; P:protein transport; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.300; -; 1.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR025662; Sigma_54_int_dom_ATP-bd_1.
DR   InterPro; IPR005225; Small_GTP-bd_dom.
DR   InterPro; IPR001806; Small_GTPase.
DR   Pfam; PF00071; Ras; 1.
DR   SMART; SM00174; RHO; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00231; small_GTP; 1.
DR   PROSITE; PS51419; RAB; 1.
PE   2: Evidence at transcript level;
KW   Cell membrane; GTP-binding; Lipoprotein; Membrane; Nucleotide-binding;
KW   Prenylation; Protein transport; Transport.
FT   CHAIN           1..202
FT                   /note="Ras-related protein Rab-18A"
FT                   /id="PRO_0000121265"
FT   MOTIF           38..46
FT                   /note="Effector region"
FT                   /evidence="ECO:0000250"
FT   BINDING         16..23
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000250"
FT   BINDING         64..68
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000250"
FT   BINDING         123..126
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000250"
FT   LIPID           198
FT                   /note="S-geranylgeranyl cysteine"
FT                   /evidence="ECO:0000250"
FT   LIPID           200
FT                   /note="S-geranylgeranyl cysteine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   202 AA;  22619 MW;  80764B3E66F35B37 CRC64;
     MEEQEIITTL KILIIGESGV GKSSLLLRFT EDTFDPEQAA TIGVDFKVKT LTVEGNKTKL
     AIWDTAGQER FRTLTPSYYR GAQGVILVYD VSSKQSFNKL DAWLNELETF STKHDMVKML
     VGNKIDRANH EVTKDEGLKF ARKHHMLFIE ASAKTNDGVQ CAFEELVEKI IQTPGLWETS
     SKNLTLSNHG PEGQGQSCYC VL